Afreight train is carrying goods across the country. the number of gallons of fuel it has used varies directly with the distance it has traveled. see the graph below.( )

Sorry I only know the answer for A.

(A.) For every 1 gallon of gas used, 4 miles are traveled.

Step-by-step explanation:

For every 100 gallons, the train travels for 25 miles. To find how many gallons the train uses for x amount of miles, divide 100 by 25. Since your answer is 4, then for every 1 gallon of gas the train travels 4 miles.

1/3 + 1/3 ≠ 2/6 because 1/3 alone = 2/6  

step by step explanation:

1/3 + 1/3 = 2/3       2/3=4/6

1) 2/5

2) zero=0/1

3) zero=0/2

4) -4/5

5) undefined=3/0